I. ə-ˈkwä-tik, -ˈkwa- adjective
Date: 1610
1. : growing or living in or frequenting water
aquatic mosquito larvae
2. : taking place in or on water
aquatic sports
• aquat·i·cal·ly -ti-k(ə-)lē adverb
II. noun
Date: circa 1600
1. : an aquatic animal or plant
2. plural but singular or plural in construction : water sports